The ir studies of the status of Cu+ ions in CuZSM-5 CuBeta and in CuMCM-41

J. Datka*, P. Kozyra, E. Kukulska-Zajaç, M. Szutiak, N. Kumar

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedingChapterScientificpeer-review

4 Citations (Scopus)

Abstract

The electron donor properties of Cu+ and the ability to activate adsorbed molecules by π-back donation of d electrons of Cu+ to π* antibonding orbitals of a molecule increases in the order: CuMCM-41 < CuZSM-5 < CuBeta. It was evidenced by IR studies of CO, N2, and NO adsorption. TPD-IR experiments provided information on heterogeneity of Cu+ sites in all the zeolites studied. The experiments on the reduction (in H2) and oxidation (in air) evidenced that the ability of Cu+ to reduction and oxidation depends on zeolite structure. The ability to reduction increased in the order: CuMCM-41 < CuBeta < CuZSM-5, whereas the ability to oxidation increased in the opposite order.

Original languageEnglish
Title of host publicationRecent Advances in the Science and Technology of Zeolites and Related Materials
Subtitle of host publicationPart B
EditorsE. van Steen, M. Claeys, L. H. Callanan
PublisherElsevier
Pages1655-1660
Number of pages6
ISBN (Print)978-0-444-51826-2
DOIs
Publication statusPublished - 2004
MoE publication typeA3 Part of a book or another research book

Publication series

NameStudies in Surface Science and Catalysis
Volume154, Part B
ISSN (Print)0167-2991

Keywords

  • CuBeta
  • CuMCM-41
  • CuZSM-5
  • IR spectroscopy

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